As I mentioned yesterday, Alexa Chung's second collection for Madewell debuted online in the States (unfortunately it also seemed to crash the site!). Last night, the British starlet hosted a star-studded party to fete the launch of her follow-up collection with a swag of celebrity pals. It seems it does pay to have friends in high places, as some of Hollywood's hottest young thangs descended on the Chateau Marmont to help Alexa celebrate.

Some of A-listers to attend included Abbie Cornish, Dianna Agron, Busy Phillips, Joy Bryant and Amanda Seyfried. Kate Bosworth also fronted up to the bash, gushing to WWD: "[Alexa's] just so talented." Gal-of-the-moment Elle Fanning was also in attendance wearing one of the pieces from the collection, a cream lace dress with scalloped trim and a pair of chunky wooden platforms. "It's cool to see her in my dress," Alexa said.

Click on to see more pics from the party and a video of the making of Chung's lookbook...